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Subaru Impreza 2008 fuel consumption

Subaru Impreza from 2008 to 2011 real fuel consumption according to user reports is approximately 8% higher compared to advertised fuel consumption. Starting from 2008 Subaru Impreza average difference between actual owner-reported fuel consumption and stated consumption was similar to average, at 2010 difference between owner-reported and advertised fuel economy became less than industry average. For more details, see the table below.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

YearGasoline cars
All carmakersSubaru Impreza
2008+12%+13%
Show all years
2009+13%+13%
2010+16%+13%
2011+18%+13%

See below for the actual consumption of generations and versions of Subaru Impreza.

2008 - 2011

Subaru Impreza 2008 sedan fuel economy

Average advertised fuel consumption for petrol engines25.7 MPG
9.2 l/100km
Average real-world fuel consumption for petrol engines23.2 MPG
10.1 l/100km
Average real gasoline consumption difference *+13%

Subaru Impreza 2008 automatic vs manual fuel consumption

As indicated by the advertised fuel consumption, Subaru Impreza 2008 with automatic transmission have almost the same fuel economy as similar versions with manual gearbox.
Based on user-reported real-world fuel consumption, this generation Subaru Impreza with automatic transmission has nearly identical fuel consumption to the version with the same engine but a manual gearbox.

Of all modifications the best advertised fuel economy in its class has Subaru Impreza with 2.5 petrol engine and manual transmission (Subaru Impreza 2008 WRX 2.5 265 HP 4x4), but despite this 65% of other similar cars have better fuel economy figures.

ModificationClaimed consumptionReal consumption
1.5 liter petrol engine
Subaru Impreza 2008 1.5R 107 HP 4x4 manual 31.4 MPG
7.5 l/100km
29.8 MPG
7.9 l/100km+5%
Subaru Impreza 2008 1.5R 107 HP 4x4 automatic 31.4 MPG
7.5 l/100km
2.0 liter petrol engine
Subaru Impreza 2008 2.0R 150 HP 4x4 manual 28.7 MPG
8.2 l/100km
24.5 MPG
9.6 l/100km+17%
Subaru Impreza 2008 2.0R 150 HP 4x4 automatic 28.0 MPG
8.4 l/100km
24.5 MPG
9.6 l/100km+14%
2.5 liter petrol engine
Subaru Impreza 2008 WRX 2.5 224 HP 4x4 manual 22.6 MPG
10.4 l/100km
Subaru Impreza 2008 WRX 2.5 224 HP 4x4 automatic 22.6 MPG
10.4 l/100km
Subaru Impreza 2008 WRX 2.5 265 HP 4x4 manual 22.6 MPG
10.4 l/100km
20.5 MPG
11.5 l/100km+11%
Subaru Impreza 2008 WRX STI 2.5 293 HP 4x4 manual 22.6 MPG
10.4 l/100km
19.4 MPG
12.1 l/100km+16%

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.